Advances in respiratory distress syndrome.
D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012127:Respiratory Distress Syndrome, Newborn / Q000517:prevention & control*; D012312:Ritodrine / Q000627:therapeutic use; D013256:Steroids / Q000627:therapeutic use
D013256:Steroids; D012312:Ritodrine